300 RPM on hot coffee (at least that's what it claims) http://www.techsoft.no/holography/stirling_engines_is_facinating_t.htm -Mario > > > You might do better with direct peltier effect conversion. > A small plate, about 1/2 sq foot, will give you 12V at about 300mA with > not much heat input. > > > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist